Effect of LED Phototherapy on the Rate of Orthodontic Tooth Movement

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Effect of LED Phototherapy on the Rate of Orthodontic Tooth Movement ( effect-led-phototherapy-rate-orthodontic-tooth-movement )

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List of Figures Figure 1.1 The Ardnt-Schultz effect describes the observation of a stimulatory effect in response to a low-moderate dose of an intervention whereas an inhibitory response is seen when higher doses of an intervention/drug are used ....................................................................6 Figure 1.2 The comparison of sunlight, LED and lasers. Sunlight is composed of light of various wavelengths, and amplitudes. LED light is composed of light that has a narrow wavelength and amplitude, with low spatial coherence. Laser light displays spatial and temporal coherence of light with a narrow wavelengths and amplitude .........................................7 Figure 2.1 Preparation for extraction space closure. Prior to space closure, bilaterally symmetrical premolars were extracted. Subsequently, the teeth in the dental arch were aligned and leveled. The left image illustrates a starting malocclusion while the right image shows a typical dental arch ready to begin active space closure and the start of data collection ..........18 Figure 2.2 Extraction space closure. Constant force NiTi coil springs (150g) were used to conduct active extraction space closure .................................................................19 Figure 2.3 Extraction space measurements .............................................................20 Figure 2.4 The BIOLUX LED device ...................................................................22 Figure 3.1 The average number of days of completed LED phototherapy cycles (of 21 min/day) applied to one side of the dental arch during bilaterally symmetric extraction space closure viii

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Effect of LED Phototherapy on the Rate of Orthodontic Tooth Movement

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